Silas, 25, went undrafted out of Northern Illinois in 2011 after averaging 22.3 PPG in his senior year. Since then, he has had stints overseas and in the D-League, and briefly saw NBA action for the Sixers during the 2011/12 season, appearing in two games for Philadelphia.

As I noted on Friday, the Wizards are one of a handful of teams with 15 or more players on fully guaranteed contracts. That makes it unlikely that camp invitees like Childress or Silas will make the regular-season roster, but Washington has seen Chris Singleton and Emeka Okafor go down with injuries — if the team is concerned about depth, it could open the door for a small roster shakeup.